lux::LightPhotonMap Class Reference

#include <photonmap.h>

Inheritance diagram for lux::LightPhotonMap:

Collaboration diagram for lux::LightPhotonMap:

Public Member Functions
	LightPhotonMap (u_int nl, float md)
virtual	~LightPhotonMap ()
void	init (int npaths, const vector< LightPhoton > &photons)
bool	isEmpty ()
SWCSpectrum	EPhoton (const TsPack *tspack, const Point &p, const Normal &n) const
SWCSpectrum	LPhoton (const TsPack tspack, const BSDF bsdf, const Intersection &isect, const Vector &wo, const BxDFType bxdfType) const
SWCSpectrum	LPhotonDiffuseApprox (const TsPack tspack, const BSDF bsdf, const Intersection &isect, const Vector &wo, const BxDFType bxdfType) const
SWCSpectrum	LDiffusePhoton (const TsPack tspack, const BSDF bsdf, const Intersection &isect, const Vector &wo) const
void	save (std::basic_ostream< char > &stream) const
Static Public Member Functions
static void	load (std::basic_istream< char > &stream, LightPhotonMap *map)
Public Attributes
const u_int	nLookup
const float	maxDistSquared
Private Attributes
u_int	nPaths

Detailed Description

Definition at line 339 of file core/photonmap.h.

Constructor & Destructor Documentation

lux::LightPhotonMap::LightPhotonMap	(	u_int	nl,
		float	md
	)			`[inline]`

Definition at line 341 of file core/photonmap.h.

virtual lux::LightPhotonMap::~LightPhotonMap ( ) [inline, virtual]

Definition at line 344 of file core/photonmap.h.

Member Function Documentation

SWCSpectrum lux::LightPhotonMap::EPhoton	(	const TsPack *	tspack,
		const Point &	p,
		const Normal &	n
	)			const

Estimates the incoming irradiance at a surface point.

Parameters:

	tspack	The thread specific pack.
	p	The position of the surface point.
	n	The orientation of the surface.

Returns:: An irradiance estimate.

Definition at line 168 of file core/photonmap.cpp.

References lux::Dot(), lux::NearSetPhotonProcess< PhotonType >::foundPhotons, lux::BasicColorPhoton::GetSWCSpectrum(), lux::PhotonMap< LightPhoton, NearSetPhotonProcess< LightPhoton > >::lookup(), M_PI, maxDistSquared, nLookup, nPaths, lux::ClosePhoton< PhotonType >::photon, lux::PhotonMap< LightPhoton, NearSetPhotonProcess< LightPhoton > >::photonmap, and lux::NearSetPhotonProcess< PhotonType >::photons.

void lux::LightPhotonMap::init	(	int	npaths,
		const vector< LightPhoton > &	photons
	)			`[inline]`

Definition at line 346 of file core/photonmap.h.

References nPaths, lux::PhotonMap< LightPhoton, NearSetPhotonProcess< LightPhoton > >::photonCount, and lux::PhotonMap< LightPhoton, NearSetPhotonProcess< LightPhoton > >::photonmap.

Referenced by load().

bool lux::LightPhotonMap::isEmpty ( ) [inline]

Definition at line 352 of file core/photonmap.h.

References nPaths.

Referenced by lux::ExPhotonIntegrator::LiDirectLightingMode(), and lux::ExPhotonIntegrator::LiPathMode().

SWCSpectrum lux::LightPhotonMap::LDiffusePhoton	(	const TsPack *	tspack,
		const BSDF *	bsdf,
		const Intersection &	isect,
		const Vector &	wo
	)			const

Estimates the outgoing radiance by diffuse reflection at a surface point in a single direction.

Parameters:

	tspack	The thread specific pack.
	bsdf	The bsdf of the surface point.
	isect	The surface point intersection.
	wo	The outgoing direction.

Returns:: A radiance estimate.

Definition at line 279 of file core/photonmap.cpp.

References lux::BSDF_DIFFUSE, lux::BSDF_REFLECTION, lux::BSDF_TRANSMISSION, lux::Intersection::dg, lux::Dot(), lux::Ekernel(), lux::NearSetPhotonProcess< PhotonType >::foundPhotons, lux::BasicColorPhoton::GetSWCSpectrum(), INV_PI, lux::PhotonMap< LightPhoton, NearSetPhotonProcess< LightPhoton > >::lookup(), maxDistSquared, nLookup, lux::DifferentialGeometry::nn, nPaths, lux::BSDF::NumComponents(), p, lux::DifferentialGeometry::p, lux::ClosePhoton< PhotonType >::photon, lux::PhotonMap< LightPhoton, NearSetPhotonProcess< LightPhoton > >::photonmap, lux::NearSetPhotonProcess< PhotonType >::photons, and lux::BSDF::rho().

Referenced by lux::ExPhotonIntegrator::LiDirectLightingMode(), and lux::ExPhotonIntegrator::LiPathMode().

void lux::LightPhotonMap::load	(	std::basic_istream< char > &	stream,
		LightPhotonMap *	map
	)			`[static]`

Definition at line 1084 of file core/photonmap.cpp.

References init(), lux::osIsLittleEndian(), and lux::osReadLittleEndianInt().

SWCSpectrum lux::LightPhotonMap::LPhoton	(	const TsPack *	tspack,
		const BSDF *	bsdf,
		const Intersection &	isect,
		const Vector &	wo,
		const BxDFType	bxdfType
	)			const

Estimates the outgoing radiance at a surface point in a single direction.

Parameters:

	tspack	The thread specific pack.
	bsdf	The bsdf of the surface point.
	isect	The surface point intersection.
	wo	The outgoing direction.
	bxdfType	The bxdf types at the surface point to to take into account.

Returns:: A radiance estimate.

Definition at line 192 of file core/photonmap.cpp.

References lux::BSDF_ALL_REFLECTION, lux::BSDF_ALL_TRANSMISSION, lux::Intersection::dg, lux::Dot(), lux::Ekernel(), lux::BSDF::f(), lux::NearSetPhotonProcess< PhotonType >::foundPhotons, lux::BasicColorPhoton::GetSWCSpectrum(), lux::PhotonMap< LightPhoton, NearSetPhotonProcess< LightPhoton > >::lookup(), maxDistSquared, nLookup, lux::DifferentialGeometry::nn, nPaths, lux::BSDF::NumComponents(), p, lux::DifferentialGeometry::p, lux::ClosePhoton< PhotonType >::photon, lux::PhotonMap< LightPhoton, NearSetPhotonProcess< LightPhoton > >::photonmap, lux::NearSetPhotonProcess< PhotonType >::photons, and lux::LightPhoton::wi.

SWCSpectrum lux::LightPhotonMap::LPhotonDiffuseApprox	(	const TsPack *	tspack,
		const BSDF *	bsdf,
		const Intersection &	isect,
		const Vector &	wo,
		const BxDFType	bxdfType
	)			const

Estimates the outgoing radiance at a surface point in a single direction using a diffuse surface approximation.

Parameters:

	tspack	The thread specific pack.
	bsdf	The bsdf of the surface point.
	isect	The surface point intersection.
	wo	The outgoing direction.
	bxdfType	The bxdf types at the surface point to to take into account.